The difficulty in creating this body for his Reflection was mostly centered on how he could mimic all his powers effectively even without their roots being inside of it. Rowan had tried various scenarios inside his Knowledge Well and discovered that it was impossible.
His Mental Space that contained his Territory and Nascent Primordial Bloodline was too 'heavy' to be carried by anything that was not sufficiently powerful.
What Rowan needed was to cleanse his Ouroboros Bloodline, for unlike the Nascent Primordial Bloodline of Sheol, his intrinsic abilities were totally manipulated by Chaos's Will. Without his second bloodline, he would not have truly understood how deep the taint was.
The moment he ascended into the Legendary Stage back when he was in that World with a Red Moon, his fate was no longer his own, but with the assistance of the Primordial Record, he was beginning to rid himself of this grim fate.
